317801963 has 2 divisors, whose sum is σ = 317801964. Its totient is φ = 317801962.

The previous prime is 317801959. The next prime is 317801993. The reversal of 317801963 is 369108713.

It is a weak prime.

It is an emirp because it is prime and its reverse (369108713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317801963 - 2² = 317801959 is a prime.

It is not a weakly prime, because it can be changed into another prime (317801933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158900981 + 158900982.

It is an arithmetic number, because the mean of its divisors is an integer number (158900982).

Almost surely, 2^317801963 is an apocalyptic number.

317801963 is a deficient number, since it is larger than the sum of its proper divisors (1).

317801963 is an equidigital number, since it uses as much as digits as its factorization.

317801963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 317801963 is about 17827.0009536097. Note that the first 3 decimals coincide. The cubic root of 317801963 is about 682.4206998616.

The spelling of 317801963 in words is "three hundred seventeen million, eight hundred one thousand, nine hundred sixty-three".